3. Dab each polish onto your nails. Using a paintbrush, dip the tip into the shot glass and then into a color on your palette to thin out the polish. Then, dab the polish onto your nail, one color at a time. Every time you need to pick up more polish on the brush, first dip it in the nail polish remover so it doesn't go on too opaque.

4. Soften and blend the colors together. Dip your paintbrush back into the shot glass and quickly dab it over your nail to diffuse the colors, giving you that watercolor finish. Finally, seal with a topcoat.

Voilà! A mani masterpiece that people are going to pin the hell out of. Now, go pin, Instagram, and tweet your DIY design with the hashtag #CosmoManiMonday.